More on echolocation

My aunt sent me an email with a related story. With her permission, I post it here:

I was looking at your blog and saw the piece on echolocation. I worked with a blind man who used it all the time. He went from the North Side to Downtown Pittsburgh and back for lunch every day by himself via echolocation. It was amazing to witness. He would make clicking noises and could tell from the feedback if something/someone was or was not in front of him. I never saw him bump into anything in or outside our offices. He was a systems analyst and fixed program bugs and was really good at it. He used special scanning equipment that translated the code into braille. Truly, he is an amazing man.

I had to share this. Too cool.